Hard turning has become an attractive method of machining for most manufacturers in the last few years due to its low cost and superior surface quality compared grinding. In this experimental study, machinability hardened steel under dry on a CNC lathe is undertaken optimize cutting parameters minimum roughness energy consumption with speed (320, 450, 575), tool type (coated uncoated), feed rat...

Abstract This paper presents an effort to model the process parameters involved in turning of alloy steel AISI 4340 workpiece material with Al 2 O 3 and CuO hybrid nanofluids using minimum quantity lubrication (MQL) method. In this paper, effect mixing two nanoparticles (Al CuO) different weight percent environmentally friendly water-based cutting fluid, rotational speed, feed rate has been inv...

In this study, 39 sets of hard turning (HT) experimental trials were performed on a Mori-Seiki SL25Y (4-axis) computer numerical controlled (CNC) lathe to study the effect of cutting parameters in influencing the machined surface roughness. In all the trials, AISI 4340 steel workpiece (hardened up to 69 HRC) was machined with a commercially available CBN insert (Warren Tooling Limited, UK) unde...